21X1111X1X121XM0
212X11111X121XM0
2XXX111112121XM0
2XXX111X2X121XM0
2X2111112X121XM0
2X21111X12121XM0
21XXX1112X1211M0
21XXX11X121211M0
2121X111121211M0
2121X11X2X1211M0
2XX1X11X221211M0
2X2XX111221211M0
21X12111221212M0
212X211X221212M0
2XX121111X1212M0
2X2X211X1X1212M0
